NVision NV3128 User manual

NV3128
RS-422A Machine-Control Data
Routing Switch
Manual Part Number: MN3128-00B
Instruction Manual
NVISION

Printing History
Model NV3128 Manual, Edition 2
Printed in the U.S. .
Copyright
NVision, Incorporated
January, 2000
July, 1993
All Rights Reserved
No part of this manual may be reproduced in any form by photostat, microfilm,
xerography, or any other means, or incorporated into any information retrieval
system, electronic or mechanical, without the written permission of NVISION, Inc.
Notice
The information contained in this Operations Manual is subject to change without
notice or obligation.

Warranty Statement
NVISION, Inc. warrants that the equipment it manufactures shall be free from defects in materials and
workmanship for a period of two (2) ears, optionall extendable to five (5) ears, from the date of shipment
from the factor . If warranted equipment fails due to such defects, NVISION, Inc. shall, at its option, repair
or provide replacement for the defective part or product.
Equipment that fails after the warrant period, or that which has been operated outside its ratings or
subjected to abuse, shall be repaired for time and material charges at the Bu ers expense. All out-of-
warrant repairs are warranted for a period of ninet (90) da s from the date of shipment from the factor .
NVISION, Inc. makes no warranties, expressed or implied, of merchantabilit , fitness for a particular
purpose or otherwise. With respect to the products sold b it, NVISIONs liabilit for an cause, including
breach of contract, breach of warrant or negligence, is limited to repair or replacement b NVISION, at
its sole discretion. This remed is exclusive.
In no event shall NVISION be liable for an incidental or consequential damages, including loss of profit.
Year 2000 Warranty Statement
NVISION, Inc. warrants that all of its hardware, firmware, and software products are not date-code sensitive
and that their functionalit will not be affected or altered in an wa b a 21st centur date code.
NVISION cannot warrant that the performance of NVISION products will not be impaired b interaction with
third part equipment and software s stems that ma not be ear 2000 compliant.
NVISION internal operations, manufacturing services, accounting s stems and engineering programs
have been determined to be ear 2000 compliant and it is not anticipated that a 21st centur date will affect
the functionalit of our business.
We are investigating our suppl channels for components and services to ensure that the will not be
affected b a 21st centur date code, but we cannot warrant that our products or services will not be
affected b external services be ond NVISION control.
Disclaimer
NVISION disclaims all responsibilit for product or service impairments that ma arise due to interaction with
third part products, equipment, or services that are not ear 2000 compliant.

Technical S pport
If ou need support of an kind related to our equipment, contact the local representative who sold ou
the product, or ou ma contact NVISION, Inc. directl b an of the following methods.
Telephone Main Telephone: [phone]
Technical Support: [phone]
Sales: 800-719-1900 or (530)-265-1000
Facsimile Main FAX Number: (530)-265-1010
Sales: (530)-265-1021
Email Technical Support: [email protected]
Sales: [email protected]
Postal Addresses Shipping Address: Mailing Address:
NVISION, Inc. NVISION, Inc.
125 Crown Point Court PO Box 1658
Grass Valle , CA 95945 Nevada Cit , CA 95959
FCC (USA) Compliance Statement
This equipment has been tested and found to compl with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequenc energ and, if not installed and used in
accordance with the instruction manual, ma cause harmful interference in which case the user will be
required to correct the interference at their own expense.
E ropean Comm nity (CE) Declaration of Conformance
Some or all of the equipment described in this manual has been designed to conform with the required
safet and emissions standards of the European Communit . Products tested and verified to meet these
standards are marked as required b law with the CE mark.
When shipped into member countries of the European Communit , this equipment is accompanied b
authentic copies of original Declarations of Conformance on file in NVISION corporate headquarters in
Nevada Cit , California, USA.

Important Safeg ards and Notices
The information on the following pages provides important safet guidelines for both operator and service
personnel. Specific warnings and cautions appear throughout the manual where the appl . Please read
and follow this important safet information, especiall those instructions related to the risk of electric shock
or injur to persons.
WARNING: Any instructions in this manual that require opening the equipment cover or
enclosure are or use by quali ied service personnel only. To reduce the risk o electric shock,
do not per orm any servicing other than that contained in the operating instructions unless you
are quali ied to do so.
Symbols and Their Meanings
The lightning flash with arrowhead s mbol within an equilateral triangle alerts the user to
the presence of dangerous voltages within the products enclosure that ma be of sufficient
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle alerts the user to the presence of
important operating and maintenance/service instructions. These instructions ma include
warnings or cautions advising about the potential for damage to equipment or danger to
personnel.
The Ground s mbol represents a protective grounding terminal. Such a terminal must be
connected to earth ground prior to making an other connections to the equipment.
The fuse s mbol indicates that the fuse referenced in the text must be replaced with one
having the ratings indicated.
The presence of the UL s mbol in or on NVISION equipment means that it has been
designed, tested and certified as compl ing with applicable Underwriters Laborator
(USA) regulations and recommendations.
The presence of the CE s mbol in or on NVISION equipment means that it has been
designed, tested and certified as essentiall compl ing with all applicable European Union
(CE) regulations and recommendations.
U
R

Warnings
A warning indicates a possible hazard to personnel which ma cause injur or death. Observe the following
general warnings when using or working on this equipment.
- Heed all warnings on the unit and in the operating instructions.
- Do not use this equipment in or near water.
- This equipment is grounded through the grounding conductor of the power cord. To avoid electrical shock,
plug the power cord into a properl wired receptacle before connecting the equipment inputs or outputs.
- Route power cords and other cables so the are not likel to be damaged.
- Disconnect power before cleaning the equipment. Do not use liquid or aerosol cleaners; use onl a damp
cloth.
- Dangerous voltages ma exist at several points in this equipment. To avoid personal injur , do not touch
exposed connections and components while power is on.
- Do not wear rings or wristwatches when troubleshooting high current circuits such as the power supplies.
- During installation, grasp the chassis of the equipment firml and lift with our legs; do not bend over at
the waist to lift heav items. Moreover, do not rel on door handles or front panels to lift the equipment
as the are not intended for this purpose.
- To avoid fire hazard, use onl the specified fuse(s) with the correct t pe number, voltage and current
ratings as referenced in the appropriate locations in the service instructions or on the equipment. Alwa s
refer fuse replacements to qualified service personnel.
- To avoid explosion, do not operate this equipment in an explosive atmosphere.
- Have qualified service personnel perform safet checks after an completed service.
- If equipped with redundant power supplies, the equipment has two power cords. To reduce the risk of
electric shock, disconnect both power suppl cords before servicing the unit.

Ca tions
A caution indicates a possible hazard to equipment that could result in equipment damage. Observe
the following general cautions when operating or working on this equipment.
- When installing this equipment, do not attach the power cord to building surfaces.
- To prevent damage to equipment when replacing fuses, locate and correct the problem that caused
the fuse to blow before re-appl ing power.
- Verif that all power suppl lights are off before removing the power suppl or servicing the equip-
ment.
- Use onl the specified replacement parts.
- Follow static precautions at all times when handling this equipment.
- This product should onl be powered as described in the manual. To prevent equipment damage,
select the proper line voltage at the AC input connector (if applicable) as described in the installation
documentation.
- To prevent damage to the equipment, read the instructions in the equipment manual for proper input
voltage range selection.
- To maximize protection against unwanted power loss, ensure that the power cords for redundant
power supplies are plugged into separate branch circuits.

North American Power S pply Cords
The power cords supplied with this equipment have a molded grounding plug (NEMA 5-15P) at one
end and molded grounding receptacle (IEC 320-C13) at the other end. Conductors are CEE color-
coded: Light blue (neutral), Brown (line) and Green or Green/Yellow (ground).
Operation of this equipment at voltages exceeding 130 VAC will require power suppl cords which
compl with NEMA configurations.
Line
Neutral
Ground (Earth)
Green or Green
with Yellow Stripe
Blue
Brown
International Power S pply Cords
The power cords supplied with this equipment have a molded grounding receptacle (IEC 320-C13) at
one end and stripped conductors (50/5 mm) at the other end. Conductors are CEE color-coded: Light
blue (neutral), Brown (line) and Green/Yellow (ground). Other IEC 320-C13 t pe power suppl cords
can be used if the compl with the safet regulations of the countr in which the are installed.
Line
Neutral
Ground (Earth)
Green with
Yellow Stripe
Blue
Brown

TABLE OF CONTENTS
1. GENERAL INFORMATION ........................................................................................ 1-1
1.1 General .................................................................................................... 1-3
1.2 Architecture .............................................................................................. 1-4
1.3 I/O .......................................................................................................... 1-12
1.4 Ph sical .................................................................................................. 1-12
1.5 Ancillar Equipment ................................................................................ 1-13
1.6 Specifications ......................................................................................... 1-14
2. INSTALLATION .......................................................................................................... 2-1
2.1 HARDWARE INSTALLATION .................................................................... 2-3
2.2 CONFIGURATION .................................................................................... 2-6
2.3 CABLING ................................................................................................ 2-14
2.4 ADDING A REDUNDANT CONTROLLER ............................................... 2-18
2.5 IMPLEMENTING HOT CHANGEOVER ................................................... 2-18
2.6 PC DIAGNOSTIC INTERFACE ................................................................ 2-19
3. OPERATION ............................................................................................................... 3-1
3.1 CONNECTION NOTES ............................................................................. 3-3
3.2 COMPUTER UTILITIES ............................................................................. 3-5
4. THEORY OF OPERATION ........................................................................................ 4-1
4.1 S stem ...................................................................................................... 4-3
4.2 Circuit Operation ...................................................................................... 4-5
5. MAINTENANCE AND TROUBLESHOOTING .......................................................... 5-1
5.1 Customer Support .................................................................................... 5-3
5.2 Scheduled Maintenance ........................................................................... 5-3
5.3 Reliabilit .................................................................................................. 5-3
5.4 Troubleshooting ........................................................................................ 5-4
GLOSSARY ................................................................................................................... G-1
INDEX...................................................................................................................... Index-1